public class StringUtils
extends java.lang.Object
Constructor and Description |
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StringUtils() |
Modifier and Type | Method and Description |
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static boolean |
areStringsIdentical(java.lang.String s1,
java.lang.String s2) |
static java.lang.String |
base64Encode(byte[] bytes)
Encode the given byte array using base64 and return the result as a string.
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static java.lang.String |
base64Encode(java.lang.String str)
Encode the given string as a (utf8) byte array and then encode that
using base64 and return the result as a string.
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static java.lang.String |
capitalizeFirst(java.lang.String string)
Return a String with the first letter capitalized.
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static int |
computeLevenshteinDistance(java.lang.CharSequence str1,
java.lang.CharSequence str2) |
static java.lang.String |
convertToFileName(java.lang.String str)
Performs a conversion from the given string to an encoded version
that can be used as a file/URL name.
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static int |
countFields(java.lang.String str,
char delimiter) |
static java.lang.String |
decode(java.lang.String str) |
static byte[] |
decodeHex(java.lang.String s) |
static java.lang.String |
decodeURL(java.lang.String str)
This method decodes a URL parameter that has special characters %encoded
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static void |
doNothing() |
static java.lang.String |
encode(java.lang.String str) |
static java.lang.String |
encodeHex(byte[] buf,
boolean breaklines) |
static java.lang.String |
fieldIndex(java.lang.String str,
char delimiter,
int n) |
static java.lang.String |
fillLeft(java.lang.String str,
int width,
char fillChar) |
static java.lang.String |
fillRight(java.lang.String str,
int width,
char fillChar) |
static java.lang.String |
formatFixedDecimals(java.lang.String value,
char decimalChar,
int numDecimals)
Formats the given double [0..1.00] as a percentage with the specified number of decimal digits
showing.
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static java.lang.String |
formatMinDecimals(java.lang.String value,
char decimalChar,
int numDecimals)
Formats the given double [0..1.00] as a percentage with the specified number of decimal digits
showing as a minimum, there could be more.
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static java.lang.String |
formatPercentage(double value,
char decimalChar)
Formats the given double [0..1.00] as a percentage with either zero (if an even percentage)
or two decimal digits showing.
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static java.lang.String |
formatPercentage(double value,
char decimalChar,
boolean forceDecimal)
Formats the given double [0..1.00] as a percentage with either zero (if an even percentage)
or two decimal digits showing.
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static java.lang.String |
formatRate(double rate,
char decimalChar) |
static java.lang.String |
formatShortRate(double rate,
char decimalChar) |
static java.lang.String |
getExtensionFromFilename(java.lang.String fileName)
Returns the extension, if any, on the given file name.
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static java.lang.String |
getGMTDateStr(java.util.Date dt) |
static java.lang.String |
getNLengthString(int width,
char fillChar) |
static char |
guessDecimalType(java.lang.String currencyString) |
static boolean |
isAllNumber(java.lang.String str) |
static boolean |
isBlank(java.lang.String candidate)
Null safe check for a String with nothing but whitespace characters.
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static boolean |
isDate(java.lang.String str) |
static boolean |
isEmpty(java.lang.String candidate)
Null safe check for "" (empty string).
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static boolean |
isInteger(java.lang.String str) |
static boolean |
isNumeric(java.lang.String str) |
static boolean |
looksLikeFormula(java.lang.String expr) |
static void |
main(java.lang.String[] argv) |
static double |
parseDouble(java.lang.String val,
char decimalChar) |
static double |
parseDouble(java.lang.String val,
double defaultVal,
char decimalChar) |
static double |
parseDoubleWithException(java.lang.String val,
char decimalChar) |
static double |
parseFormula(java.lang.String str,
char dec) |
static double |
parseFraction(java.lang.String fraction,
char decimalChar)
Parse a fraction from a string - ie "1/5".
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static long |
parseQuickenDate(java.lang.String date) |
static double |
parseRate(java.lang.String rateStr,
char decimalChar) |
static double |
parseRate(java.lang.String rateStr,
double defaultRate,
char decimalChar) |
static java.lang.String |
replaceAll(java.lang.String str,
java.lang.String toReplace,
java.lang.String replaceWith)
Replace one or more tokens inside another string with a value.
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static java.lang.String |
shortenStringIfLongerThan(java.lang.String s,
int limit,
java.lang.String suffix)
Returns a substring whole length is guaranteed to be no longer than
limit or the given string itself if its length is less than limit.
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static void |
sortStringArray(java.lang.String[] array) |
static java.lang.String[] |
split(java.lang.String str,
char splitChar) |
static java.util.List<java.lang.String> |
splitIntoList(java.lang.String str,
char splitChar) |
static java.lang.String |
stripExtension(java.lang.String fileName)
Returns the filename passed as argument without extension
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static java.lang.String |
stripNonFilenameSafeCharacters(java.lang.String filename)
Strip all characters that should not appear in a filename (including path characters)
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static java.lang.String |
stripNonNumbers(java.lang.String str,
char decimalChar) |
static java.lang.String |
stripPath(java.lang.String filename)
Returns the file name with any path stripped from the beginning.
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static java.lang.String |
truncateHead(java.lang.String s,
int limit,
java.lang.String prefix)
Returns a string that is guaranteed to be withing 'limit' characters by truncating the beginning
of the string, if necessary.
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static java.lang.String[] |
vectorToStringArray(java.util.Vector v) |
public static final java.lang.String encodeHex(byte[] buf, boolean breaklines)
public static final byte[] decodeHex(java.lang.String s)
public static java.lang.String shortenStringIfLongerThan(java.lang.String s, int limit, java.lang.String suffix)
public static java.lang.String truncateHead(java.lang.String s, int limit, java.lang.String prefix)
public static final java.lang.String base64Encode(java.lang.String str)
public static final java.lang.String base64Encode(byte[] bytes)
public static final java.util.List<java.lang.String> splitIntoList(java.lang.String str, char splitChar)
public static final java.lang.String[] split(java.lang.String str, char splitChar)
public static final java.lang.String[] vectorToStringArray(java.util.Vector v)
public static final java.lang.String getNLengthString(int width, char fillChar)
public static final java.lang.String getGMTDateStr(java.util.Date dt)
public static final void main(java.lang.String[] argv)
public static final java.lang.String fillLeft(java.lang.String str, int width, char fillChar)
public static final java.lang.String fillRight(java.lang.String str, int width, char fillChar)
public static final boolean areStringsIdentical(java.lang.String s1, java.lang.String s2)
public static final java.lang.String fieldIndex(java.lang.String str, char delimiter, int n)
public static final int countFields(java.lang.String str, char delimiter)
public static final void sortStringArray(java.lang.String[] array)
public static final java.lang.String stripNonNumbers(java.lang.String str, char decimalChar)
public static final boolean isInteger(java.lang.String str)
public static final boolean isAllNumber(java.lang.String str)
public static final boolean isNumeric(java.lang.String str)
public static final boolean isDate(java.lang.String str)
public static final char guessDecimalType(java.lang.String currencyString)
public static final java.lang.String decodeURL(java.lang.String str)
public static final java.lang.String decode(java.lang.String str)
public static final java.lang.String encode(java.lang.String str)
public static final java.lang.String convertToFileName(java.lang.String str)
public static final java.lang.String formatRate(double rate, char decimalChar)
public static final java.lang.String formatShortRate(double rate, char decimalChar)
public static final double parseFraction(java.lang.String fraction, char decimalChar)
public static final double parseRate(java.lang.String rateStr, char decimalChar)
public static final double parseRate(java.lang.String rateStr, double defaultRate, char decimalChar)
public static final double parseDouble(java.lang.String val, char decimalChar)
public static final double parseDouble(java.lang.String val, double defaultVal, char decimalChar)
public static final double parseDoubleWithException(java.lang.String val, char decimalChar) throws java.lang.Exception
java.lang.Exception
public static java.lang.String formatPercentage(double value, char decimalChar)
value
- The value as a decimal (is multiplied by 100 for display).decimalChar
- The decimal character to display.public static java.lang.String formatPercentage(double value, char decimalChar, boolean forceDecimal)
forceDecimal
is true, digits after the decimal
point will be displayed regardless of whether it is an even percentage or not.value
- The value as a decimal (is multiplied by 100 for display).decimalChar
- The decimal character to display.forceDecimal
- True to always display digits after the decimal point, false to only
display them if it is not an even integer percentage.public static java.lang.String formatFixedDecimals(java.lang.String value, char decimalChar, int numDecimals)
value
- The numeric string as currently formatted.decimalChar
- The decimal character to display.numDecimals
- The number of decimals to force display of.public static java.lang.String formatMinDecimals(java.lang.String value, char decimalChar, int numDecimals)
value
- The numeric string as currently formatted.decimalChar
- The decimal character to display.numDecimals
- The number of decimals to force display of.public static final long parseQuickenDate(java.lang.String date)
public static final boolean looksLikeFormula(java.lang.String expr)
public static final double parseFormula(java.lang.String str, char dec) throws java.lang.Exception
java.lang.Exception
public static void doNothing()
public static java.lang.String replaceAll(java.lang.String str, java.lang.String toReplace, java.lang.String replaceWith)
str
- The string containing the token(s).toReplace
- The token, case sensitive, to be replaced.replaceWith
- The string to replace the token with. Can be null
.str
string with the token replaced with a new value.public static boolean isEmpty(java.lang.String candidate)
candidate
- the String to evaluate.public static boolean isBlank(java.lang.String candidate)
candidate
- the String to evaluate.public static java.lang.String stripExtension(java.lang.String fileName)
public static java.lang.String getExtensionFromFilename(java.lang.String fileName)
public static java.lang.String stripNonFilenameSafeCharacters(java.lang.String filename)
public static java.lang.String stripPath(java.lang.String filename)
public static java.lang.String capitalizeFirst(java.lang.String string)
string
- public static int computeLevenshteinDistance(java.lang.CharSequence str1, java.lang.CharSequence str2)